Question 8 2 pts Put the steps of the patellar reflex in...

Question 8 2 pts Put the steps of the patellar reflex in order. 1 2 3 4 5 6 Motor signal travels to quadriceps muscle Signal is sent up primary sensory neuron to spinal cord Sensory neuron stimulates lower motor neuron in ventral horn of spinal cord Quadriceps muscle is stretched a bit, activating muscle spindles Quadriceps muscle contracts; leg kicks Tapping stretches the patellar tendon

Let's construct a diagram of the knee jerk reflex starting with the sensory pathway. Fill in the blanks using the terms in the table below (see Fig. 43.28 and 44.1). Boldfaced terms should go into the (). When a hammer hits the patellar __________, the __________ (__________) stretches slightly, which opens __________- gated __________ in the __________ __________ which is part of the __________ nervous system. __________ rush into the __________ cell, triggering a(n) __________ __________ in the __________. If the hammer tap (__________) is strong enough, the __________ __________ reaches __________ and causes a(n) __________ __________. This __________ __________ is __________ along the __________ towards the __________. Note: Terms can be used more than once. Axon Spinal chord Action potential Propagated Receptor potential Threshold Muscle spindle Sensor Stimulus Tendon Sodium ions Mechanically Sensory neuron Peripheral Ion channel Membrane potential

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